Hex BarSpecification: ASTM B166

Sourcable Ex-Stock Material for Other Forms from Japanese Distributor

Plate

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WeldingRod & Wire

Wire

Min

Max

1`20mm

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Corrosion resistance

ALLOY600 is resistant to a wide range of corrosive media. Due to the chromium content the alloys possess better corrosion resistance than ALLOY200/201under oxidizing conditions.
At the same time, the high nickel content results in good corrosion resistance under reducing conditions and in alkaline solutions and leads to virtual immunity to chloride-ion stresscorrosion cracking.
ALLOY600 shows moderate resistance to mineral acids and good resistance to acetic, formic, stearic and other organic acids.
Excellent resistance is shown in high purity water, as used in the primary and secondary circuits of some nuclear reactors.
ALLOY600 is particularly resistant to attack by dry chlorine or hydrogen chloride, even at temperatures up to 650 C (1200 F).
At high temperatures in air the soft-annealed and solutionannealed alloys show good resistance to oxide scaling and have high strength.
The alloys also resist ammonia bearing atmospheres, as well as nitrogen and carburizing gases. Under alternating oxidizing and reducing conditions the the alloys may suffer from selective oxidation (green rot).

International Specification Comparison chart

Material

Round Bar

Plate

Pipe

Seamless

Welded

ASTM

UNSN06600

B166

B168

B167

B163/516/517

ASME

SB166

SB168

SB167

SB163/516/517

JIS

NCF600

H4553

G4901

H4552

DIN

2.4816

17752

17750

17751

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